JP2010262780A - Lamp apparatus and lighting apparatus - Google Patents

Abstract

A flat lamp device capable of obtaining a light distribution in a side direction and a front direction is provided.
A base 30 is provided on one side of a flat lamp device body 31, and a module substrate 32 is provided on the other side. In the peripheral area of the flat substrate 42 of the module substrate 32, a side light emitting body 43 that emits light in the side surface direction along the surface of the substrate 42 is mounted. A front light emitter 44 that emits light in a front direction perpendicular to the surface of the substrate 42 is mounted in the central region of the substrate 42.
[Selection] Figure 1

Description

  The present invention relates to a flat lamp device and a lighting fixture using the lamp device.

  Conventionally, for example, there is a lamp device using a GX53 type base. This lamp device is generally flat and has a GX53-type base provided on one surface side of the lamp device body, and a flat fluorescent lamp or LED as a light source on the other surface side of the lamp device body. (For example, refer to Patent Document 1).

Japanese Patent Laying-Open No. 2008-140606 (page 3, FIG. 1)

  In the flat lamp device described above, when an LED is used as a light source, a module substrate in which a chip-like LED is mounted on a flat substrate is disposed on the other surface side of the lamp device body. In this case, the LED has a light distribution in a front direction perpendicular to the surface of the substrate. Therefore, the light distribution characteristic of this lamp device is mainly the light distribution in the front direction perpendicular to the surface of the substrate, and the light distribution in the side surface direction along the surface of the substrate is small.

  The lamp device having such a light distribution characteristic is suitable for, for example, a luminaire that requires spot-like light distribution such as a downlight, but is flat as in a wall luminaire called a bracket device. Not suitable for lighting fixtures that require light distribution. In this lighting fixture for a wall surface, a lamp device is mounted on a socket of a fixture body installed on the wall surface side, a bracket is disposed so as to cover the front side of the lamp device by opening between the wall surface, The wall surface is irradiated with light between the wall surface and the bracket. When the lamp device having the above-mentioned light distribution characteristics is used for the lighting fixture for the wall surface, the light from the lamp device is mainly irradiated toward the bracket on the front side, and is irradiated to the wall surface between the wall surface and the bracket. Therefore, the desired wall surface illumination cannot be obtained and the illumination efficiency is reduced.

  SUMMARY An advantage of some aspects of the invention is that it provides a flat lamp device capable of obtaining a light distribution in a lateral direction, and a lighting fixture using the lamp device.

  The lamp device according to claim 1 is a flat lamp device main body provided with a base on one surface side; a flat substrate disposed on the other surface side of the lamp device main body; and a surface mounted on the substrate along the surface of the substrate. And a module substrate having a side light emitter that emits light in the direction of the side surface.

  The base is, for example, GX53 type, and may be integral with or separate from the lamp device main body.

  The lamp device main body is preferably made of metal having excellent heat dissipation in order to dissipate heat generated by the side light emitter.

  For example, the side light emitter has a semiconductor light emitting element such as an LED or an organic EL, and has a mounting surface mounted on the substrate and a light emitting surface that emits light in a direction along the mounting surface. Good. The mounting method on the substrate is, for example, a COB (Chip On Board) type in which chip-shaped LEDs are directly mounted on the substrate and wire-bonded, or an SMD (mounting light emitter with a connection terminal on which chip-shaped LEDs are mounted). Surface Mount Device) type or the like may be used. By mounting the light emitting surface of the side light emitter on the substrate in the side surface direction, light distribution in the side surface direction along the surface of the substrate can be obtained. The side light emitters may be arranged on either side of the substrate, but if a plurality of side light emitters are arranged at equal intervals along the peripheral area of the substrate, light distribution in the side direction can be obtained from the entire circumference of the lamp device. . When the side light emitter is disposed in the peripheral area of the substrate, the light emitting surface of the side light emitter and the peripheral portion of the substrate are arranged so that a part of the light emitted from the light emitting surface of the side light emitter is not blocked by the substrate. The light emitting surface of the side light emitter and the peripheral portion of the substrate are preferably the same, or the light emitting surface of the side light emitter protrudes from the peripheral portion of the substrate.

  The board | substrate should just have the one surface side which contacts a lamp apparatus main body thermally, and the other side surface in which a side surface light-emitting body is mounted. A reflection surface that reflects light emitted from the side light emitter may be provided on the other side of the substrate on which the side light emitter is mounted.

  Further, a reflector that reflects light emitted from the side light emitter, a translucent glove that covers the other side of the lamp device body, or a lighting device that lights the side light emitter may be provided. This is not an essential configuration of the present invention.

  The lamp device according to claim 2 is the lamp device according to claim 1, wherein the module substrate includes a front light emitter that is mounted in a central region of the substrate and emits light in a front direction perpendicular to the surface of the substrate. The light emitter is mounted on the peripheral area of the substrate.

  The front light emitter has, for example, a semiconductor light emitting element such as an LED or an organic EL, and has a mounting surface mounted on the substrate and a light emitting surface that emits light in a direction opposite to the mounting surface. It only has to be. The mounting method on the substrate is, for example, a COB (Chip On Board) type in which chip-shaped LEDs are directly mounted on the substrate and wire-bonded, or an SMD (mounting light emitter with a connection terminal on which chip-shaped LEDs are mounted) Surface Mount Device) type or the like may be used. By mounting the light emitting surface of the front light emitter on the substrate facing the front direction opposite to the substrate, light distribution in the front direction perpendicular to the surface of the substrate can be obtained. The number of front light emitters mounted is not particularly limited, and the front light emitters may be arranged at any position on the other surface side of the substrate as long as the light emitted from the side light emitters is not excessively blocked.

  A lighting fixture according to a third aspect includes the lamp device according to the first or second aspect.

  The lighting fixture may include a fixture main body, a socket device for mounting the lamp device, and the like, and may be any of a wall surface installation type, a ceiling installation type, a ceiling hanging type, and the like.

  According to the lamp device of the first aspect, since the side surface light emitter having the light distribution in the side surface direction along the surface of the substrate is provided, a flat lamp device capable of obtaining the light distribution in the side surface direction can be provided.

  According to the lamp device according to claim 2, in addition to the effect of the lamp device according to claim 1, since the front light emitter is mounted in the central region of the substrate and the side light emitter is mounted in the peripheral region of the substrate, A flat lamp device that can obtain a light distribution in the front direction and the side direction can be provided.

  According to the luminaire described in claim 3, it is possible to provide a luminaire that can be configured in a thin shape using a flat lamp device and can obtain a light distribution in the side surface direction.

It is a side view of the lamp device which shows one embodiment of this invention. It is a front view of the module board of a lamp device same as the above. It is sectional drawing which shows the light-emitting body of a module board same as the above. It is a perspective view of a lamp device and a socket device same as the above. It is a perspective view of the lighting fixture using the lamp device and socket device same as the above.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  As shown in FIGS. 4 and 5, the lighting fixture 11 is a wall-mounted lighting fixture called a bracket fixture, and includes a fixture body 13 installed on the wall surface 12, a socket device 14 attached to the fixture body 13, and A lamp device 15 is detachably mounted on the socket mounting 14.

  The instrument body 13 has a mounting portion (not shown) that is attached to the wall surface 12 and a cover portion 18 that covers the front side of the mounting portion, and an opening portion 13a that emits light is formed on the upper, lower, left, and right surfaces of the cover portion 18. Has been. Inside the cover portion 18, a socket device 14 attached to the attachment portion and a lamp device 15 attached to the socket device 14 are accommodated and arranged, and the front side of the lamp device 15 faces the inner surface of the cover portion 18. It becomes arrangement to do. Then, the illumination light 19 due to the lighting of the lamp device 15 is applied to the wall surface 12 through the upper, lower, left and right openings 13a of the fixture body 13, and the shadow is applied to the wall surface 12 corresponding to the frame portion between the openings 13a of the fixture body 13. 20 is formed.

  As shown in FIG. 4, the socket device 14 corresponds to the GX53 type base, and has a cylindrical socket device body 22 made of an insulating synthetic resin. An insertion hole 23 is formed through the center.

  A pair of socket portions 24 are formed on the front surface of the socket device body 22. These socket portions 24 are formed with connection holes 25, and a receiving member (not shown) for supplying power to the inside of the connection holes 25 is disposed. The connection hole 25 is an arcuate groove portion that is rotationally symmetrical with respect to the center of the socket device main body 22, and an enlarged diameter portion 26 is formed at one end of the arcuate groove portion.

  As shown in FIGS. 1 and 4, the lamp device 15 includes a flat lamp device body 31 having a GX53-type base 30 provided on one surface side, and a module disposed on the other surface side of the lamp device body 31. A board 32, a globe 33 that covers the module board 32 and is attached to the other surface of the lamp device body 31, and a lighting device (not shown) housed in the lamp device body 31 are provided. It is formed in a flat shape with a small size in the vertical direction.

  The lamp device main body 31 is formed of a metal such as aluminum having excellent heat dissipation. A GX53-type base 30 is integrally or separately provided on one surface side, and the module substrate 32 is in thermal surface contact with the other surface side. A flat disk-shaped substrate mounting surface 35 is provided.

  An annular contact surface 37 that contacts the socket device 14 is formed on the base 30, and a columnar protrusion 38 that allows insertion into the insertion hole 23 of the socket device 14 protrudes from the center of the contact surface 37. ing. A pair of conductive metal lamp pins 39 protrudes from the contact surface 37. A large-diameter portion 40 is formed at the tip of these lamp pins 39. Then, by inserting the large diameter portion 40 of each lamp pin 39 from the enlarged diameter portion 26 of each connection hole 25 of the socket device 14 and rotating the lamp device 15 by a predetermined angle, the lamp pin 39 is connected from the enlarged diameter portion 26 to the connection hole. 25, the lamp pin 39 is electrically contacted with a receiver disposed inside the connection hole 25, the large diameter portion 40 is caught on the edge of the connection hole 25, and the lamp device 15 is attached to the socket device 14. Retained.

  The module substrate 32 has one surface mounted on the substrate mounting surface 35 in thermal contact with the substrate mounting surface 35 of the lamp device main body 31, and a plurality of side light emitters 43 and 1 mounted on the other surface of the substrate 42. Two front light emitters 44 are provided.

  The substrate 42 has a substrate body formed in a circular and flat plate shape with a metal material having excellent thermal conductivity such as aluminum, and one surface side of the substrate body is in close contact with the substrate mounting surface 35 of the lamp device body 31. It is screwed to do. The other surface side of the substrate body is a mounting surface 45. A wiring pattern is formed on the mounting surface 45 via an insulating layer on the substrate body, and the side light emitter 43 and the front light emitter 44 are surfaces on the wiring pattern. It is mounted, electrically connected and mechanically fixed.

  As shown in FIGS. 1 to 3, the side light emitter 43 and the front light emitter 44 are a chip-like LED 46 that emits blue light as a semiconductor light emitting element, and a reflector 47 that reflects light emitted from the LED 46 in a predetermined light distribution direction. And a sealing member 48 containing a phosphor that is excited by the blue light emitted from the LED 46 and emits mainly yellow light. Therefore, white light is emitted from the light emitting surface 49, which is the surface of the sealing member 48 serving as a planar secondary light source, using the LED 46 as a pointed primary light source.

  The side light emitter 43 has a mounting surface 50 that is surface-mounted on the substrate 42 and a light emitting surface 49 that emits light in the side surface direction along the mounting surface 50, and is equally spaced in the circumferential direction around the substrate 42. The light emitting surfaces 49 are surface-mounted at a plurality of locations with the light emitting surfaces 49 facing the outer surface of the lamp device 15. The light output surface 49 only needs to have the largest light output within a range of ± 30 ° above and below the orthogonal direction of the light output surface 49. In addition, the light may be emitted in other directions. I do not care.

  It should be noted that the distance between the light emitting surface 49 of the side light emitter 43 and the peripheral portion of the substrate 42 should be small so that a part of the light emitted from the light emitting surface 49 of the side light emitter 43 is not blocked by the substrate 42. More preferably, the light emitting surface 49 of the side light emitter 43 and the peripheral portion of the substrate 42 are the same, or the light emitting surface 49 of the side light emitter 43 should protrude from the peripheral portion of the substrate 42. Further, when the light emitting surface 49 of the side light emitter 43 is disposed on the inner side of the peripheral portion of the substrate 42, the side light emission is applied to the portion of the mounting surface 45 of the substrate 42 that faces the light emitting surface 49 of the side light emitter 43. A reflection surface that reflects light emitted from the body 43 may be provided, or a reflector that reflects light emitted from the light emission surface 49 of the side light emitter 43 may be used separately.

  The front light emitter 44 has a mounting surface 50 that is surface-mounted on the substrate 42 and a light emitting surface 49 that emits light in a direction opposite to the mounting surface 50. The light emitting surface 49 is surface-mounted toward the front direction of the lamp device 15. The number of front light emitters 44 is not limited to one, and a plurality of front light emitters 44 may be mounted.

  The globe 33 is made of transparent or light diffusing glass or synthetic resin having translucency.

  In the lighting circuit, the lamp pin 39 is electrically connected to the input portion of the lighting circuit, and the module substrate 32 is electrically connected to the output portion of the lighting circuit.

  Then, the lamp device 15 configured in this way is mounted on the socket device 14 and is lit.

  When the side light emitter 43 is turned on, the light 53 emitted from the light emitting surface 49 of the side light emitter 43 passes through the globe 33 and is emitted from the side surface of the lamp device 15, and light distribution in the side surface direction of the lamp device 15 is performed. In particular, since a plurality of side light emitters 43 are arranged at equal intervals along the peripheral area of the substrate 42, light distribution from the entire circumference of the lamp device 15 to the side surface direction can be obtained.

  When the front light emitter 44 is turned on, the light 53 emitted from the light emitting surface 49 of the front light emitter 44 passes through the globe 33 and is emitted from the front of the lamp device 15, and the light distribution in the front direction of the lamp device 15 Is obtained.

  Accordingly, it is possible to provide a flat lamp device 15 in which a light distribution can be obtained in the side direction and the front direction. The light distribution can be arbitrarily adjusted by the number of the side light emitters 43 and the front light emitters 44 and the light diffusion action of the globe 33.

  Further, the heat generated by lighting each of the light emitters 43 and 44 is thermally conducted to the substrate 42 and is also conducted from the substrate 42 to the lamp device main body 31 and is radiated from the outer surface of the lamp device main body 31 or the socket device 14. Therefore, the temperature of the light emitters 43 and 44 is maintained within an appropriate range.

  Further, as shown in FIG. 5, in the lighting fixture 11 using the flat lamp device 15, the amount of protrusion from the wall surface 12 can be reduced, and the thin lighting fixture 11 having excellent design can be provided.

  In addition, since the side surface of the lamp device 15 is opposed to the upper and lower openings of the cover portion 18, the illumination light 19 is irradiated to the wall surface 12 through the upper and lower openings of the cover portion 18 when the lamp device 15 is turned on. Wall illumination is obtained, and the illumination efficiency is improved.

  The lighting fixture 11 is not limited to the wall-mounted type, but can be applied to any of a ceiling-mounted type and a ceiling-suspended type.

11 Lighting equipment
15 Lamp device
30 base
31 Lamp unit
32 Module board
42 PCB
43 Side light emitter
44 Front light emitter

Claims (3)

A flat lamp device body provided with a cap on one side;
A flat substrate disposed on the other surface side of the lamp device main body, and a module substrate including a side surface light emitter that is mounted on the substrate and emits light in a side surface direction along the surface of the substrate;
A lamp device comprising: The module substrate has a front light emitter that is mounted in a central region of the substrate and emits light in a front direction perpendicular to the surface of the substrate, and the side light emitter is mounted in a peripheral region of the substrate. Item 2. The lamp device according to Item 1. A lighting apparatus comprising the lamp device according to claim 1.

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